I agree with @williamzembricki and @rjs84 that label is crucial and if something happens to the labels that just as important as the product. In some cases FDA requires a certain font to make sure the user can read and understand the directions on the label. I think having a problem with labeling on a product especially a device or drug would warrant a recall. The user has to be able to clearly read the label and all of the pertinent information. Here is PDF document of the CDRH Labeling Regulatory Requirements for Medical Devices:

https://www.fda.gov/downloads/MedicalDevices/DeviceRegulationandGuidance/GuidanceDocuments/UCM095308.pdf

This is what medical device companies should implement for labeling.